75 2-4.13 Sociolinguistic studies In Peru the government has in recent years sought the participation of missionary linguists associated with the Summer Institute of Linguistics and of secular linguists from academic institutions in the development of educa- tional programs for speakers of indigenous languages (loosely referred to as bilingual education programs). While most publications on problems of multilingualism in Peru focus on Quechua and the jungle languages rather than on Aymara, several recent studies include references to Aymara. As noted in 1-1, the two most recent Peruvian national censuses (for 1961 and 1972) contain basic demo- graphic data on the numbers and location of Aymara speakers in Peru. The proceedings of a round table on problems of Quechua and Aymara monolingualism held in 1963 have been published in Mesa redonda sobre el monolingiiismo quechua_ y aymara y 1a educaci6n en el Perd (1966). One of the participants in the round table was Alberto Escobar, a Peruvian linguist who later founded the government- and Ford Foundation-supported Plan de Fomento Lingiifstico (linguistic development plan) at the National University of San Marcos in Lima and who has written several thoughtful essays on the language problems of Peru such as an article on literacy programs (Escobar 1972a). Escobar edited a collection of articles entitled El_reto del multilingiiismo en el PerG which appeared in